Waterproofing and Sealants

RAS Engineering, PA provides professional waterproofing and sealant consulting services for condominium associations, HOAs, property managers, commercial buildings, apartment communities, contractors, developers, attorneys, and property owners throughout South Florida. Our team evaluates exterior building systems to identify water intrusion risks, failed sealants, deteriorated waterproofing, construction defects, and conditions that may lead to leaks, corrosion, concrete deterioration, mold, and long-term building damage.

Protect Your Building from Water Intrusion

Water is one of the most damaging forces affecting buildings in South Florida. Wind-driven rain, salt air, humidity, UV exposure, aging materials, poor drainage, and improper repairs can all contribute to waterproofing failure.

When sealants, coatings, membranes, flashing, or drainage details fail, water can enter the building envelope and damage structural components, interior finishes, reinforcing steel, insulation, and occupied spaces. RAS Engineering helps identify the source of the problem and develop practical repair recommendations designed to improve long-term performance.

Our Waterproofing and Sealant Services

RAS Engineering provides engineering consulting services for waterproofing and sealant systems, including:

• Waterproofing condition assessments

• Sealant inspections and joint evaluations

• Water intrusion investigations

• Building envelope evaluations

• Façade, balcony, roof, and window interface reviews

• Expansion joint and control joint evaluations

• Coating and membrane assessments

• Flashing and transition detail review

• Drainage and slope evaluations

• Moisture mapping and infrared thermal imaging

• Construction defect investigations

• Repair specifications and contractor bid packages

• Permit support and construction observation

• Final certification and project closeout support

Common Waterproofing and Sealant Problems

Waterproofing and sealant failures often begin as small defects but can develop into major structural and interior damage if not addressed properly.

Common issues we evaluate include:

• Failed or cracked sealant joints

• Missing or poorly installed backer rod

• Improper joint sizing or geometry

• Loss of adhesion or cohesion

• Failed waterproofing membranes

• Cracked balcony or plaza deck coatings

• Deteriorated expansion joints

• Water intrusion around windows and doors

• Leaks at roof-to-wall transitions

• Failed flashing details

• Ponding water or poor drainage

• Concrete cracking and corrosion related to moisture exposure

• Prior repairs that trap water instead of allowing proper drainage

Engineer-Prepared Repair Specifications

Effective waterproofing repairs require more than applying new sealant over old joints. A qualified engineer should evaluate why the system failed and prepare repair specifications that address the actual cause of water intrusion.

RAS Engineering can prepare detailed specifications for repair, including:

• Sealant removal and replacement procedures

• Joint preparation requirements

• Backer rod and bond breaker requirements

• Sealant material recommendations

• Waterproofing membrane repair details

• Flashing and transition details

• Surface preparation standards

• Concrete repair coordination

• Drainage improvements

• Quality control and testing requirements